Not completely, while most LEDs have spectrums that are adjustable there is a reason why "Premium" LEDs command a higher price.... They normally have a much a wider spectrum and can grow corals better than others (See g4 pros Vs. non Pro G4). Not to say you cant grow corals with lesser LEDS (We know that corals can adjust) but imo this is the main difference between legacy lighting tech (Metal Halide, T5) vs. Leds... they may have spectrum advantages, therefore grow corals better. In my own personal experience moving from Non Pro G4's to Orpheks.... my corals grow much faster and better under Orpheks than non pro radions; if i had to guess, its because of the spectrum. I know that on the spectrum front Leds are catching up. In the past this was also the same reason why we used to use multiple legacy lighting tech (VHO, metal halides, T5's), it gave the aquarist the look and spectrum to satisfy corals growing in the aquarium.